Reactivity of organogold compounds with B(C6F5)3: gold-boron transmetalation via [sigma]-B/[pi]-Au species
The reactions of gold-acetylides with B(C6F5)3 afford alkynyl borate species and cationic π-coordinated gold complexes. The analogous reactions with aryl gold species generate gem-diaurated compounds containing a borate counteranion. These new σ-B/π-Au alkynyl borate complexes can be employed as act...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 26, 2014
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| In: |
Organometallics
Year: 2014, Jahrgang: 33, Heft: 17, Pages: 4461-4470 |
| ISSN: | 1520-6041 |
| DOI: | 10.1021/om5006885 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/om5006885
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| Verfasserangaben: | Max M. Hansmann, Frank Rominger, Michael P. Boone, Douglas W. Stephan, and A. Stephen K. Hashmi |
| Zusammenfassung: | The reactions of gold-acetylides with B(C6F5)3 afford alkynyl borate species and cationic π-coordinated gold complexes. The analogous reactions with aryl gold species generate gem-diaurated compounds containing a borate counteranion. These new σ-B/π-Au alkynyl borate complexes can be employed as active catalysts in homogeneous catalysis and represent a new silver-free activation pathway. The new alkynyl borate species are fully characterized, and the alkyne fragments are shown to be bound in a σ-B/π-Au fashion. Upon prolonged heating, these compounds undergo a slow C6F5 group transfer to gold affording LAuC6F5 species. |
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| Beschreibung: | Die Ziffern im Titel sind tiefgestellt, sigma und pi sind als griechische Buchstaben dargestellt Gesehen am 03.09.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 1520-6041 |
| DOI: | 10.1021/om5006885 |